EP1688190B1 - Installation de laminage avec appareillage de détection du profil d'une bande - Google Patents

Installation de laminage avec appareillage de détection du profil d'une bande Download PDF

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Publication number
EP1688190B1
EP1688190B1 EP06004958A EP06004958A EP1688190B1 EP 1688190 B1 EP1688190 B1 EP 1688190B1 EP 06004958 A EP06004958 A EP 06004958A EP 06004958 A EP06004958 A EP 06004958A EP 1688190 B1 EP1688190 B1 EP 1688190B1
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EP
European Patent Office
Prior art keywords
strip shape
strip
load
roller
rolling mill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP06004958A
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German (de)
English (en)
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EP1688190A1 (fr
Inventor
Takashi Norikura
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Hitachi Ltd
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Hitachi Ltd
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Publication date
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Publication of EP1688190A1 publication Critical patent/EP1688190A1/fr
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • G01L5/107—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means for measuring a reaction force applied on an element disposed between two supports, e.g. on a plurality of rollers or gliders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/045—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands for measuring the tension across the width of a band-shaped flexible member
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/04—Lateral deviation, meandering, camber of product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression

Definitions

  • the present invention relates to rolling mill facilities having strip shape detection equipment, and in particular to, a rolling mill facility that has strip shape detection equipment having strip shape detecting devices installed at least one one of the inlet side and the outlet side of the rolling mill that rolls metal strips, permitting the measurement of the strip shape using such shape detected equipment, having a high productivity, and being ideally suitable for obtaining strip s with excellent strip shape.
  • the most widely used type is the segmented roller type in wich shape detecting devices are installed in the shape detection equipment for measuring the strip shape after rolling the metal strip s, and the body part of the detection roller is segmented with a pitch of about 50 mm, the weight load on each of those rings is measured, and from them, the tension distribution is calculated, and from that tension distribution conversion is made to the strip shape of the strip thereby measuring strip shape of the strip.
  • the accuracy in such segmented roller types will be high because they allow measurement of the direct tension distribution for each segment ring.
  • the strip shape detecting device of the conventional segmented roller type divides the body part of the rotating sensor roller into several segments and has a complicated construction in which different load cells are incorporated for each segment, although the detection accuracy is good, the device becomes extremely expensive.
  • the segmented roller type because of being of the segmented roller type, there is the fear of scratching the surface of the strip in each segment and of bad effects of thermal deformation due to heat transfer from the strip.
  • US-A-4 512 170 discloses a rolling mill facility for hot and cold rolling strip materials in a four-high rolling mill comprising one roller on which the strip is partially wound under tension. At each end of the roller a first and a second neck portion are formed which are freely rotatably supported in two bearing boxes, respectively. Associated with the bearing boxes are load cells for measuring the supporting load on each bearing box. The measurements at the load cells are used to determine the bending of the rollers and then the unflatness of the strip material. From said measurements other conditions of the rolling operation, such as asymmetric operation of the rolling mill and off-center rolling, may also be determined.
  • the object of the present invention is to provide a rolling mill facility having a strip shape detection equipment with a simple construction, and using which it is possible to measure easily the strip shape of the metal strip after rolling, and increasing the acceleration rate at the time of starting the rolling operation, and also increasing the production efficiency by decreasing the frequency of strip exhaustion.
  • the rolling mill facility comprises at least one rolling mill having a pair of top and bottom work rolls that roll the strips, and a strip shape detection equipment in which a shape detecting device is installed at least on one of the inlet and outlet sides of the rolling mill, and the strip shape detecting device comprises one roller on which the metal strip is wound, at least two bearing boxes on one side and four bearing boxes on both sides provided on an operating side end section and a driving side end section, respectively, of that roller, and supporting the roller in a free-to-rotate manner, and at least two load cells on one side or four load cells on both sides, with the load cells being provided on the bearing boxes, respectively, and capable of measuring the supporting load on each of the bearing boxes.
  • the tension distribution of the strip can be calculated from the load values measured by the load cells, that tension distribution can be converted into the strip shape of the strip , thus indirectly measuring the strip shape of the strip , and hence it becomes possible to measure easily the strip shape of the metal strip after rolling with a simple construction.
  • the roller is a non-segmented integrated construction roller, there is no problem of causing scratches on the surface of the strip , and also there are no bad effects of thermal deformation due to heat transfer from the strip , and hence the durability gets improved.
  • the strip shape detection equipment is additionally provided with a means for calculating the tension distribution of the strip from the load values measured by the load cells of the strip shape detecting device, and for converting that tension distribution into the strip shape of the strip.
  • the means for calculating the strip shape of the strip converts to the strip shape of the operation side half of the strip from the load measured by the two load cells provided in the bearing boxes on the operation side end section of the strip shape detector, and converts to the strip shape of the driving side half of the strip from the load measured by the two load cells provided in the bearing boxes on the driving side end section of the strip shape detector. Because of this, it is possible to calculate the entire strip shape.
  • strip shape detecting devices respectively on the two bearing boxes on each side are provided additionally with a means on any one bearing box out of the two bearing boxes on each side for applying pre-load on the bearing box in the direction of the supporting load.
  • said shape detection equipment is additionally provided with an edge position detecting device that detects the amount of meandering movement of the strip , and a means that not only calculates the operating side plate width range and the driving side plate width range according to the detected value from that edge position detecting device, but also converts to the strip shape of the plate width range of the strip on the operation side from the load measured by the two load cells provided on the bearing boxes in the operation side end section of said shape detecting device, and converts to the strip shape of the plate width range of the strip on the driving side from the load measured by the two load cells provided on the bearing boxes in the driving side end section of said shape detecting device.
  • the strip shape detection equipment is additionally provided with a displacement measurement means that measures the roller surface displacement in the tension supporting direction at at least one location of the roller of the strip shape detecting device, and a means for calculating the tension distribution of the strip from the load measured by the load cells of the strip shape detecting device and the values measured by the displacement measurement means, and converts that tension distribution into the strip shape of the strip .
  • the rolling mill facility is provided with a control means that carries out feedback control of the strip shape controlling means of the rolling mill so that the difference between the shape measured by the strip shape detecting device on the outlet side of the rolling mill equipment and the previously set target strip shape becomes small.
  • the rolling mill facility consisting of a strip shape detection equipment, consists of a rolling mill 4 having a pair of top and bottom work rolls 2 and 3 that roll the strip 1 and the take-up and supply rolls 7 and 8 placed on the inlet and outlet sides of this rolling mill 4.
  • the rolling mill 4 is a reversible mill, in that, for example, the strip 1 which is the material taken out from the take-up/supply roll 7 for rolling is rolled by the work rolls 2 and 3 of the rolling mill 4, and is then taken up by the take-up/supply roll 8.
  • the shape detecting devices 5 and 6 have been installed between the take-up/supply rolls 7 and 8 on the inlet and outlet sides of the rolling mill 4.
  • the shape detecting devices 5 and 6 constitute the shape detection equipment, and both of these devices have the same construction.
  • the details of the shape detecting device 5 are shown in Fig. 2 and Fig. 3 .
  • the shape detecting device 5 is provided with one roller 14 that is partially wound around (by a specific angle) by the strip 1, two bearing boxes on one side with a total of four bearing boxes on both sides 9A, 10A, 9B, 10B of the operating side end section and the driving side end section, respectively, of that roller 14, with these bearing boxes containing bearings (not shown in the figure) that support the roller in a free-to-rotate manner, and load cells 11A, 12A, 11B, 12B that are provided on the load surfaces of these bearing boxes 9A, 10A, 9B, 10B with two load cells on one side or four load cells on two sides that measure the supporting load of each bearing, and the frames 13A and 13B that support these load cells 11A, 12A, 11B, 12B.
  • the load cells 11A and 11B support the bottom surfaces of the inside bearing boxes 9A and 9B taking them as the load surfaces and are supported by the frames 13A and 13B, while the load cells 12A and 12B support the top surfaces of the outside bearing boxes 10A and 10B taking them as the load surfaces and are supported by the frames 13A and 13B on the upper side, and the load cells 11A, 12A, 11B, and 12B as well as the frames 13A and 13B function as the fixed fulcrum supporting the two ends of the roller 14.
  • the shape detection method using the shape detecting devices 5 and 6 is described below.
  • the strip 1 contacts the roller 14 for a specific angle, and tensile force of strip 1 acts on the roller 14.
  • the load cells 11A, 12A, 11B, and 12B and the frames 13A and 13B function as the fixed fulcrum supporting the two ends of the roller 14 as mentioned above, the supporting reaction forces Fa and Fb of the inside load cells 11A and 11B and the frames 13A and 13B act in the upward direction on the two ends of the roller 14, and the supporting reaction forces Qa and Qb of the outside load cells 12A and 12B and the frames 13A and 13B act in the downward direction.
  • These supporting reaction forces Fa, Fb, Qa, and Qb are respectively detected as the vertical loads by the load cells 11A, 11B, 12A, and 12B.
  • the tension distribution of the strip 1 is balanced with the supporting reaction forces Fa and Fb and the supporting moments Ma and Mb due to beam balancing.
  • the tension distribution when the supporting reaction forces Fa and Fb have the same value and the strip 1 has the center buckled shape as shown in Fig. 4 (a) , the tension distribution has a low value at the center of the plate and high values at the edges, thus having a concave distribution.
  • the strip 1 has a flat shape as shown in Fig. 4 (b) , the tension distribution will be a flat distribution.
  • the supporting moments Ma and Mb that are calculated from the measured supporting reaction forces Fa, Fb, Qa, and Qb will have intermediate values.
  • the strip 1 has an edge buckled shape as shown in Fig. 4 (c)
  • the tension distribution has a high value at the center of the plate and low values at the edges, thus having a convex distribution.
  • the supporting moments Ma and Mb that are calculated from the measured supporting reaction forces Fa, Fb, Qa, and Qb will have large values.
  • the unknown coefficients to be obtained are two on each side and four in all, and are the coefficients ⁇ a, ⁇ a, ⁇ b, and ⁇ b.
  • the unknown coefficients ⁇ a and ⁇ a can be obtained from the above equations thereby calculating the tension distribution.
  • the unknown coefficients ⁇ b and ⁇ b can be obtained from the above equations thereby calculating the tension distribution.
  • the roller is a non-segmented integrated construction roller, there is no problem of causing scratches on the surface of the strip , and also there are no bad effects of thermal deformation due to heat transfer from the strip , and hence the durability gets improved.
  • the shape detection equipment has, in addition to the shape detecting devices 5 and 6, a computer 100 having a load detection section 30, a tension distribution computation section 31, a strip shape computation section 32, and a screen display section 33.
  • the load detection section 30 receives the input of the detection signals from the shape detecting devices 5 and 6 and computes the supporting reaction forces Fa, Fb, Qa, and Qb.
  • the screen display section 33 displays the strip shape computed in the strip shape computation section 32.
  • the shape detection equipment has a shape detecting device 25, and this shape detecting device 25 has the frame 13A supporting the load cells 11A and 12A in the operation side end section of the roller 14, bolts 16A and 17A that are linked to the frame 13A by screws, and the plate 15A that is pushed against the load cell 12A by these bolts 16A and 17A, and by tightening the bolts 16A and 17A, a pre-load is applied in the supporting load direction to the load cell 12A via the plate 15A.
  • the driving side end section of the roller 14 in the shape detecting device 25 has a similar construction.
  • the shape detecting device 25 corresponds to the shape detecting device 5 in the first preferred embodiment of the present invention, and it is also possible to construct and equivalent of the shape detecting device 6 in a similar manner.
  • the gaps of the bearing boxes 9A and 10A, the load cells 11A and 12A, and the frame 13A can be made zero, it is possible to measure the load with a high accuracy from the load cells 11a and 12A.
  • the shape detection equipment has a shape detecting device 35, and this shape detecting device 35 has a gap sensor 18 provided on the lower side of the mid-point of the roller 14, and the deflection of the mid-point of the roller 14 is detected by this gap sensor 18.
  • the three unknown coefficients on each side are obtained using total of three simultaneous equations consisting of the equation for calculating the deflection of the mid-point of the roller 14 in addition to the vertical direction force balancing equation and the condition equation of the beam deflection angle 0 of the fixed fulcrum section.
  • the values of the coefficients ⁇ , ⁇ , and ⁇ are obtained by measuring the supporting reaction forces Fa and Qa, calculating the supporting moment Ma, and also measuring the amount of deflection of the mid-point of the roller, after which the tension distribution is calculated.
  • Fb and Qb are measured, the supporting moment Mb is calculated, and also the amount of deflection of the mid-point of the roller is measured, and then the tension distribution is calculated.
  • the shape detection equipment has a shape detecting device 45, and this shape detecting device 45 has bearing boxes 9A and 9B on the operation side end part and driving side end part of the roller 14 with one on one side or two on both sides, and has load cells 11A and 11B corresponding to these bearing boxes with one on one side or two on both sides.
  • this gap sensor 18 provided on the lower side of the mid-point of the roller 14, and the deflection of the mid-point of the roller 14 is detected by this gap sensor 18.
  • extended roller shaft parts 14A and 14B have been provided at both ends of the roller 14 that project beyond the bearing boxes 9A and 9B by a specific length
  • gap sensors 19A and 19B are provided on the lower side of these extended roller shaft parts 14A and 14B
  • the deflection angles of the two ends of the roller 14 are measured by detecting the amount of deflection of the end parts of the extended roller shaft parts 14A and 14B using these gap sensors 19A and 19B.
  • the roller 14 is made hollow, and a distortion gauge 20 is installed on the inside wall at the mid-point of this hollow roller using which the bending stress at the mid-point of the roller.
  • the status values with their number being equal to the number of unknown coefficients is are measured using these sensors, and by preparing condition equations with their number being same as the number of unknown parameters, it is possible to calculate the strip shape of the strip with a high accuracy as has been explained above.
  • the shape detection equipment is provided with plate edge position detectors 40 and 41 for detecting the amount of meandering movement of the strip , a computer 101, with the computer 101 having a plate edge position detection section 42 and a meandering movement amount correction computation section 43 in addition to a load detection section 30, a tension distribution computation section 31, a strip shape computation section 32, and a screen display section 33.
  • the plate edge position detection section 42 takes as inputs the detection signals from the plate edge position detectors 40 and 41 and computes the amount of meandering movement ⁇
  • the meandering movement amount correction computation section 43 changes the values of the dimensions A and B in Fig. 5 as follows according to the value of this amount of meandering movement ⁇ .
  • A Plate width / 2 ⁇
  • B Plate width / 2 + ⁇
  • the result of computation in the meandering movement amount correction computation section 43 is sent to the tension distribution computation section 31 and will be processed there in a manner similar to that in the preferred embodiment shown in Fig. 6 .
  • FIG. 12 A preferred embodiment of the present invention is described below using Fig. 12 .
  • the present preferred embodiment is provided additionally with a strip shape feedback control computation section 47 and a strip shape control means 48, the strip shape feedback control computation section 47 carries out feedback control of the strip shape control means 48 of the rolling mill 4 so that the difference between the strip shape computed by the strip shape computation section 32 and the target strip shape that has been input beforehand becomes small.
  • the rolling mill being a single stand
  • this shape detector since the shape is measured in each stand, it is possible to carry out shape control in each stand, thereby making it possible to obtain strip s with superior strip shapes.
  • this shape detector can calculate the tension of the strip by the load difference at the supporting point, it can also be used simultaneously as a tension measuring instrument.
  • the present invention it is possible to measure easily the strip shape of metal strip s after rolling using a simple construction. Furthermore, as a result of this, since it is possible to carry out strip shape control in the rolling mill, it becomes possible to obtain strip s with superior strip shapes, and also the production efficiency becomes higher because the frequency of plate being exhausted becomes smaller.
  • the roller is a non-segmented integrated construction roller, there is no problem of causing scratches on the surface of the strip , and also there are no bad effects of thermal deformation due to heat transfer from the strip , and hence the durability gets improved.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Control Of Metal Rolling (AREA)

Claims (3)

  1. Installation de laminage comprenant :
    - au moins un laminoir (4) possédant une paire de cylindres de travail supérieur et inférieur (2, 3) qui laminent des bandes (1),
    - un équipement de détection de la forme de bande dans lequel un dispositif de détection de la forme de bande (5, 6) est installé au moins sur l'un des côtés d'entrée et de sortie dudit laminoir (4), dans lequel ledit dispositif de détection de la forme de bande (5, 6) comprend :
    - un cylindre (14) sur lequel la bande (1) est partiellement enroulée,
    - au moins deux logements de paliers (9A, 10A ; 9B, 10B) sur un côté et quatre logements de paliers (9A, 10A ; 9B, 10B) sur les deux côtés, respectivement, dudit cylindre (14), lesdits logements de paliers étant disposés sur une partie d'extrémité côté opérationnel et sur une partie d'extrémité côté entraînement et supportant ledit cylindre (14) de manière à ce qu'il puisse tourner librement, et
    - au moins deux cellules de mesure de charge (11A, 12A ; 11B, 12B) sur un côté ou quatre cellules dé mesure de charge sur les deux côtés, disposées sur lesdits logements de paliers, respectivement, et mesurant la charge sur chacun desdits logements de paliers,
    caractérisé en ce que
    - l'équipement de détection de la forme de bande est doté d'un ordinateur (101) possédant une partie de calcul de la forme de bande (32) et une partie de calcul de la commande rétroactive de la forme de bande (47) qui réalise une commande rétroactive à l'aide d'un moyen de commande de la forme de bande (48) du laminoir (4), de sorte que la différence entre la forme de bande calculée par la partie de calcul de la forme de bande (32) et la forme de bande cible qui a été entrée au préalable dans l'ordinateur devienne faible, et
    - l'équipement de détection de la forme de bande est doté d'un moyen (13A, 16A, 17A) permettant d'appliquer une pré-charge sur au moins un logement de palier (15A) agissant dans la direction de la charge.
  2. Installation de laminage selon la revendication 1,
    caractérisée en ce que
    ledit équipement de détection de la forme de bande est doté d'un dispositif de détection de la position du bord (40, 41) qui détecte le degré de mouvement méandrique de la bande (1), et d'un moyen (43) qui calcule non seulement la plage de largeurs de plaque sur le côté opérationnel et la plage de largeurs de plaque sur le côté d'entraînement selon la valeur détectée à partir de ce dispositif de détection de la position du bord (40, 41), mais convertit également en forme de bande la plage de largeurs de plaque de la bande sur le côté opérationnel à partir de la charge mesurée par les deux cellules de mesure de charge (11A) disposées sur les logements de paliers (9A) dans la partie d'extrémité côté opérationnel dudit dispositif de détection de la forme de bande (5, 6) et convertit en forme de bande la plage de largeurs de plaque de la bande (1) sur le côté d'entraînement à partir de la charge mesurée par les deux cellules de mesure de charge (11B) disposées sur les logements de paliers (9B) dans la partie d'extrémité côté entraînement dudit dispositif de détection de la forme de bande.
  3. Installation de laminage selon l'une des revendications précédentes,
    caractérisée en ce que
    ledit équipement de détection de la forme de bande est en outre doté d'un moyen de mesure du déplacement (25 ; 35) qui mesure le déplacement de la surface du cylindre dans la direction de la tension à au moins un endroit du cylindre (14) dudit dispositif de détection de la forme de bande (5, 6), et d'un moyen (31) permettant de calculer la répartition de la tension de la bande (1) à partir de la charge mesurée par les cellules de mesure de charge (11A, 11B) dudit dispositif de détection de la forme de bande et des valeurs mesurées par ledit moyen de mesure du déplacement (23 ; 35) et convertit cette répartition de la tension en forme de bande de la bande (1).
EP06004958A 2000-08-07 2001-02-27 Installation de laminage avec appareillage de détection du profil d'une bande Expired - Lifetime EP1688190B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000238136A JP3690971B2 (ja) 2000-08-07 2000-08-07 形状検出装置を有する圧延設備
EP01104446A EP1179374B1 (fr) 2000-08-07 2001-02-27 Installation de laminage avec appareillage de détection du profil d'une bande et procédé de détection du profil d'une bande

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EP01104446A Division EP1179374B1 (fr) 2000-08-07 2001-02-27 Installation de laminage avec appareillage de détection du profil d'une bande et procédé de détection du profil d'une bande

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EP1688190A1 EP1688190A1 (fr) 2006-08-09
EP1688190B1 true EP1688190B1 (fr) 2009-04-22

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EP06004958A Expired - Lifetime EP1688190B1 (fr) 2000-08-07 2001-02-27 Installation de laminage avec appareillage de détection du profil d'une bande
EP01104446A Expired - Lifetime EP1179374B1 (fr) 2000-08-07 2001-02-27 Installation de laminage avec appareillage de détection du profil d'une bande et procédé de détection du profil d'une bande

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Country Status (7)

Country Link
US (1) US6494071B2 (fr)
EP (2) EP1688190B1 (fr)
JP (1) JP3690971B2 (fr)
KR (1) KR100525335B1 (fr)
CN (1) CN1201881C (fr)
DE (2) DE60122069T2 (fr)
TW (1) TW516977B (fr)

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US20020014099A1 (en) 2002-02-07
CN1201881C (zh) 2005-05-18
JP2002045917A (ja) 2002-02-12
EP1179374A3 (fr) 2004-03-17
EP1688190A1 (fr) 2006-08-09
KR100525335B1 (ko) 2005-11-02
US6494071B2 (en) 2002-12-17
DE60122069T2 (de) 2007-10-04
TW516977B (en) 2003-01-11
EP1179374B1 (fr) 2006-08-09
JP3690971B2 (ja) 2005-08-31
EP1179374A2 (fr) 2002-02-13
CN1336259A (zh) 2002-02-20
DE60138497D1 (de) 2009-06-04
KR20020012477A (ko) 2002-02-16

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